Tufting machine needle bar drive

Details Tufting machine needle bar drive Tufting machine needle bar drive

1986-04-14

1987-03-31

Feldbaum, Ronald

Sewing

Special machines

Embroidering

D05C 1530

Patent

active

046534130

ABSTRACT:
A tufting machine has a needle bar shifter for moving the needle bar transversely of the direction of the movement of the backing fabric, a pattern cam determining the amount and frequency of the shifts. The cam is driven in timed relationship with the reciprocation of the needle bar at a cyclically variable speed. The drive for the cam includes an epicyclic gear arrangement having a constant speed input motion applied to the ring gear and an oscillatory motion applied to the planet gears. The output is taken at the sun gear and applied to the pattern cam. The same drive may also be used for driving the feed rollers to feed the base material at a cyclically variable speed when the needles are above the base material.

REFERENCES:
patent: 4392440 (1983-07-01), Ingram
patent: 4465001 (1984-08-01), Ingram
patent: 4483260 (1984-11-01), Gallant
patent: 4501212 (1985-02-01), Slattery

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